What do you do at those? I have never been.
You watch the competitors? Samples? Food?

Sent from my iPhone while driving

Yup, watch the show.
Bodybuilding
Figure
Physique
Bikini

Sometimes they have a small expo where companies sample product

The NPC Pittsburgh Pro is famous for their guest posers. they have all the pro's that will compete at the Olympia/Arnold
Cutler, Dexter Jackson, Phil Heath, Kai Green, Branch Warren etc.... People come just to see them pose.. its an amazing event, and a National Qualifer. HUGE competition.